Roberta Vinci defeated Samantha Stosur 6-2 6-4 in the Dubai quarter-final on hard. The upset overturned the form book — Samantha Stosur came in leading the head-to-head 2–0, defending last year's quarter-final, but Roberta Vinci had been the form player, winning 3 of their last 5 on hard. Roberta Vinci claimed a first win over Samantha Stosur in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-01-11 | Sydney | R32 | hard | Samantha Stosur | 4-6 7-5 7-5 |
| 2011-08-08 | Toronto | QF | hard | Samantha Stosur | 6-4 6-1 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 197). ATP, WTA & Challenger.